package JDBC;

import java.sql.Connection;
import java.sql.SQLException;
import java.sql.Statement;

public class JDBCDemo3 {
    public static void main(String[] args)  {
        try (
                Connection connection = DBUtil.getConnection()
        ){
            Statement statement = connection.createStatement();
            String sql = "UPDATE userinfo " +
                    "SET password='123456' " +
                    "WHERE username='王克晶';";
            int num = statement.executeUpdate(sql);
            if (num > 0) {
                System.out.println("修改成功");
            }else{
                System.out.println("修改失败");
            }
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }
}
